2019.07.03 Demolition Plan Backup - Noise ReportActivity Equipment Type Qty
1. Arbors Condos (North Side of Ivy Hill Crescent)CEQR Equipment (50 ft)Level @ 50 ft1 New Distance (to fence)Shielding Constr Leq @ Receptor Existing Leq (Based on measured values)Overall Constr Leq Total Leq Increment
Demolition High Reach Excavator 1 Excavator 81 255 10 57DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 255 10 60DemolitionTractor1Tractor8025510563. Arbors Condos (South Side of Ivy Hill Lane)Demolition High Reach Excavator 1 Excavator 81 453 10 52DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 453 10 55DemolitionTractor1Tractor80453105114. Blind Brook School Football Field and TrackDemolition High Reach Excavator 1 Excavator 81 862 5 51DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 862 5 54DemolitionTractor1Tractor8086255015. Village Hall, Rye Brook Police Department, Rye Brook Fire DepartmentDemolitionHigh Reach Excavator 1 Excavator 81 380 0 63DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 380 0 66DemolitionTractor1Tractor8038006216. Blind Brook School Baseball FieldDemolition High Reach Excavator 1 Excavator 81 439 5 57DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 439 5 60DemolitionTractor1Tractor80439556
1 Noise levels of equipment are derived from the CEQR Technical Manual (Chapter 22, "Construction", Table 22-1)
5.958.1
58.1
64.0
60.9
62.7
57.7
70
59
2.8
2.2
2.6
5.4
59
62.9
61.2
72.6
64.4
57.1
69.2
CEQR TECHNICAL MANUAL 22 - 11 MARCH 2014 EDITION
CONSTRUCTION
28 of Title 15 of the Rules of the City of New York, “Citywide Construction Noise Mitigation.” The val-
ues from Local Law 113 of 2005 represent the maximum allowable noise emission levels for specific
pieces of construction equipment at construction sites in New York City, and the values from Chapter
28 are what the Department of Environmental Protection (DEP) uses to identify equipment that may
be the cause for a noise complaint. Construction equipment with maximum noise emission levels less
than those shown in Table 22-1 is available. Guidance on quieter available construction equipment
and quieter construction procedures is provided in DEP Notice of Adoption of Rules for Citywide Con-
struction Noise Mitigation, as well as from the equipment manufacturers. Noise levels from construc-
tion may also be reduced through the use of perimeter noise barriers, temporary portable barriers,
shrouds, shields, enclosures, etc. These path controls should be investigated where feasible. Absent
information about specific equipment noise characteristics, the maximum values shown in Table 22-1
should be assumed, and these values may be adjusted for distance assuming a 6 dB(A) attenuation per
doubling of distance. At distances of less than 25 feet, specific equipment noise data should be used
for distance attenuation.
Where detailed construction noise analysis is necessary, construction noise analysis modeling meth-
odologies have been developed by a variety of federal agencies including the Federal Highway Admin-
istration (FHWA), Federal Transit Administration (FTA), and U.S. Environmental Protection Agency
(USEPA). The Roadway Construction Noise Model (RCNM) is the FHWA model for detailed construc-
tion noise analysis, and the maximum noise emission levels and the equipment usage factors in Table
22-1 are based on the RCNM construction equipment library. The CadnaA or SoundPLAN model can al-
so be used for detailed construction noise analysis. If these models are used, absent project specific
information, construction equipment noise emissions levels and usage factors from the RCNM could
be utilized for analysis. In general these models, which should be applied to each phase of construc-
tion (e.g., clearing, foundation, erection, finishing, landscaping) separately, account for the noise
emission of each particular piece of equipment, the number of pieces of equipment on the site, a us-
age factor which accounts for the fraction of time the equipment is being used, topography and
ground level effects, source-receptor distance, and shielding in calculating a maximum Leq(1) at the
closest noise-sensitive receptor to the proposed project. To determine potential significant impacts
caused by the construction activity, these levels are compared to the No-Action noise levels and to
applicable standards.
Table 22-1
Noise Emission Reference Levels (A-weighted decibels with RMS "slow" time constant)
Equipment Description Usage Factor (%) Lmax @ 50 Feet
All Other Equipment > 5 HP 50 85
Auger Drill Rig 20 85
Backhoe 40 80
Bar Bender 20 80
Blasting N/A 94
Boring Jack Power Unit 50 80
Chain Saw 20 85
Clam Shovel (dropping) 20 93
Compactor (ground) 20 80
Compressor (air, less than or equal to 350 cfm) 40 75A
Compressor (air, greater than 350 cfm) 40 80A
WARNING: These printed materials may be out of date.
Please ensure you have the current version that can be found on www.nyc.gov/oec.
CEQR TECHNICAL MANUAL 22 - 12 MARCH 2014 EDITION
CONSTRUCTION
Concrete Batch Plant 15 83
Concrete Mixer Truck 40 85
Concrete Pump Truck 20 82
Concrete Saw 20 90
Crane 16 85
Dozer 40 85
Drill Rig Truck 20 84
Drum Mixer 50 80
Dump Truck 40 84
Dumpster/Rubbish Removal 20 78
Excavator 40 85
Flat Bed Truck 40 84
Front End Loader 40 80
Generator 50 82
Generator (< 25 KVA, VMS signs) 50 70
Gradall 40 85
Grader 40 85
Grapple (on Backhoe) 40 85
Horizontal Boring Hydr. Jack 25 80
Hydra Break Ram 10 90
Impact Pile Driver 20 95
Jackhammer 20 85
Man Lift 20 85
Mounted Impact Hammer (Hoe Ram) 20 90
Pavement Scarafier 20 85
Paver 50 85
Pickup Truck 40 55
Pneumatic Tools 50 85
Pumps 50 77
Refrigerator Unit 100 82
Rivet Buster / Chipping Gun 20 85
Rock Drill 20 85
Roller 20 85
Sand Blasting 20 85
Scraper 40 85
Shears (on Backhoe) 40 85
Slurry Plant 100 78
Slurry Trenching Machine 50 82
WARNING: These printed materials may be out of date.
Please ensure you have the current version that can be found on www.nyc.gov/oec.
CEQR TECHNICAL MANUAL 22 - 13 MARCH 2014 EDITION
CONSTRUCTION
Soil Mix Drill Rig 50 80
Tractor 40 84
Vacuum Excavator (Vac-truck) 40 85
Vacuum Street Sweeper 10 80
Ventilation Fan 100 85
Vibrating Hopper 50 85
Vibratory Concrete Mixer 20 80
Vibratory Pile Driver 20 95
Warning Horn 5 85
Water Jet Deleading 20 85
Welder / Torch 40 73
A. Notes: As per Local Law 113 of 2005, §24-228(a)(1) Construction, Exhausts, and other Devices, “Sound, other than impulsive sound,
attributable to the source or sources, that exceeds 85 dBA as measured 50 or more feet from the source or sources at a point outside the
property line where the source or sources are located or as measured 50 or more feet from the source or sources on a public right-of-way” is
prohibited.
A Indicates the value is from Local Law 113; other values are from 15 RCNY §28-109, Appendix.
Sources: Local Law 113 and the New York City Department of Environmental Protection Notice of Adoption of Rules for Citywide Construction
Noise Mitigation: 15 RCNY 28-109, Appendix.
Construction noise is regulated by the New York City Noise Control Code and by USEPA noise emission
standards for construction equipment. These local and federal requirements mandate that certain
classifications of construction equipment and motor vehicles meet specified noise emissions stand-
ards; that, except for special circumstances, construction activities be limited to weekdays between
the hours of 7 AM and 6 PM; and that construction material be handled and transported so as not to
create unnecessary noise. A statement of adherence to these requirements is often included.
OTHER TECHNICAL AREAS
For the following technical areas--“Land Use, Zoning, and Public Policy,” “Neighborhood Character,”
“Socioeconomic Conditions,” “Community Facilities,” “Open Space,” “Historic and Cultural Resources,”
“Natural Resources,” “Hazardous Materials,” and “Sewer and Water Infrastructure”—the guidance in
the respective chapters for each technical area should be followed in conducting the preliminary as-
sessment, determining whether a detailed analysis is warranted, and if so, conducting the detailed
analysis.
In general, the determination of the significance of construction impacts is based on the same criteria as described for
each relevant technical area of this Manual. For example, if a detailed air quality analysis is conducted for a project’s
construction activities, the criteria for a significant impact in Chapter 17, “Air Quality,” should be used.
Significant construction impacts may often be mitigated in the same ways as other impacts in the particular technical
area of concern. Such mitigation measures are described in the different technical chapters of this Manual and, de-
pending on the impact, may also include such measures as alternative scheduling of construction phases.
Measures that are appropriate specifically for construction impacts are described below:
400. DETERMINING IMPACT SIGNIFICANCE
500. DEVELOPING MITIGATION
WARNING: These printed materials may be out of date.
Please ensure you have the current version that can be found on www.nyc.gov/oec.